Common Weakness Enumeration

CWE-494

Allowed

Download of Code Without Integrity Check

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The product downloads source code or an executable from a remote location and executes the code without sufficiently verifying the origin and integrity of the code.

292 vulnerabilities reference this CWE, most recent first.

CVE-2020-10926 (GCVE-0-2020-10926)

Vulnerability from cvelistv5 – Published: 2020-07-28 17:10 – Updated: 2024-08-04 11:14
VLAI
Summary
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700 V1.0.4.84_10.0.58 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of firmware updates. The issue results from the lack of proper validation of the firmware image prior to performing an upgrade. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-9648.
Severity
7.5 (High)
CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-494 - Download of Code Without Integrity Check
Assigner
zdi
References
Impacted products
Vendor Product Version
NETGEAR R6700 Affected: V1.0.4.84_10.0.58
Create a notification for this product.
Credits
Pedro Ribeiro and Radek Domanski of Team Flashback
Show details on NVD website
To clipboard 

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CVE-2020-9751 (GCVE-0-2020-9751)

Vulnerability from cvelistv5 – Published: 2020-03-03 09:15 – Updated: 2024-08-04 10:43
VLAI
Summary
Naver Cloud Explorer before 2.2.2.11 allows the system to download an arbitrary file from the attacker's server and execute it during the upgrade.
Severity
No CVSS data available.
CWE
Assigner
References
URL Tags
https://cve.naver.com/detail/cve-2020-9751 x_refsource_CONFIRM
Impacted products
Vendor Product Version
NAVER Corporation Naver Cloud Explorer Affected: unspecified , ≤ 2.2.2.11 (custom)
Create a notification for this product.
Credits
JAEWOOK SHIN(powerprove, null2root) and JINWOO PARK (P4rkJW, CAT-Security)
Show details on NVD website
To clipboard 

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CVE-2020-7883 (GCVE-0-2020-7883)

Vulnerability from cvelistv5 – Published: 2021-12-28 19:12 – Updated: 2024-09-17 02:52
VLAI
Summary
Printchaser v2.2021.804.1 and earlier versions contain a vulnerability, which could allow remote attacker to download and execute remote file by setting the argument, variable in the activeX module. This can be leveraged for code execution.
Severity
No CVSS data available.
CWE
  • CWE-494 - Download of Code Without Integrity Check
Assigner
References
Impacted products
Vendor Product Version
WOWSOFT Printchaser Affected: 2.2021.804.1 , < 2.2021.1103.101 (custom)
Create a notification for this product.
Date Public
2021-11-16 00:00
Show details on NVD website
To clipboard 

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CVE-2020-7875 (GCVE-0-2020-7875)

Vulnerability from cvelistv5 – Published: 2021-10-28 15:28 – Updated: 2024-08-04 09:41
VLAI
Title
RAONWIZ DEXT5 Upload ActiveX remote file execution vulnerability
Summary
DEXT5 Upload 5.0.0.117 and earlier versions contain a vulnerability, which could allow remote attacker to download and execute remote file by setting the argument, variable in the activeX module. This can be leveraged for code execution.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-494 - Download of Code Without Integrity Check
Assigner
References
Impacted products
Vendor Product Version
RAONWIZ DEXT5 Upload Affected: 5.0.0.117 , ≤ 5.0.0.117 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2020-7874 (GCVE-0-2020-7874)

Vulnerability from cvelistv5 – Published: 2021-09-09 12:49 – Updated: 2024-08-04 09:41
VLAI
Title
NEXACRO14 Runtime arbitrary file download and execution vulnerability
Summary
Download of code without integrity check vulnerability in NEXACRO14 Runtime ActiveX control of tobesoft Co., Ltd allows the attacker to cause an arbitrary file download and execution. This vulnerability is due to incomplete validation of file download URL or file extension.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-494 - Download of Code Without Integrity Check
Assigner
References
Impacted products
Vendor Product Version
TOBESOFT NEXACRO14 Affected: 14.0.1.3600 , < 14.0.1.3600 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2020-7873 (GCVE-0-2020-7873)

Vulnerability from cvelistv5 – Published: 2021-09-09 12:48 – Updated: 2024-08-04 09:41
VLAI
Summary
Download of code without integrity check vulnerability in ActiveX control of Younglimwon Co., Ltd allows the attacker to cause a arbitrary file download and execution.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-494 - Download of Code Without Integrity Check
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2020-7831 (GCVE-0-2020-7831)

Vulnerability from cvelistv5 – Published: 2020-08-24 15:00 – Updated: 2024-09-17 02:12
VLAI
Summary
A vulnerability in the web-based contract management service interface Ebiz4u of INOGARD could allow an victim user to download any file. The attacker is able to use startup menu directory via directory traversal for automatic execution. The victim user need to reboot, however.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-494 - Download of Code Without Integrity Check
Assigner
References
Impacted products
Vendor Product Version
INOGARD Ebiz4u CViewer Object AxECM.dll Affected: CViewer Object , ≤ 1.0.5.1 (custom)
Create a notification for this product.
Date Public
2020-08-20 00:00
Show details on NVD website
To clipboard 

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CVE-2020-7826 (GCVE-0-2020-7826)

Vulnerability from cvelistv5 – Published: 2020-07-17 15:01 – Updated: 2024-09-17 04:04
VLAI
Summary
EyeSurfer BflyInstallerX.ocx v1.0.0.16 and earlier versions contain a vulnerability that could allow remote files to be download by setting the arguments to the vulnerable method. This can be leveraged for code execution. When the vulnerable method is called, they fail to properly check the parameters that are passed to it.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-494 - Download of Code Without Integrity Check
Assigner
References
Impacted products
Vendor Product Version
Bflysoft EyeSurfer BflyInstallerX.ocx Affected: 1.0.0.16 and earlier versions
Create a notification for this product.
Date Public
2020-07-15 00:00
Show details on NVD website
To clipboard 

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CVE-2020-7817 (GCVE-0-2020-7817)

Vulnerability from cvelistv5 – Published: 2020-08-06 16:57 – Updated: 2024-08-04 09:41
VLAI
Summary
MyBrowserPlus downloads the files needed to run the program through the setup file (Setup.inf). At this time, there is a vulnerability in downloading arbitrary files due to insufficient integrity verification of the files.
Severity
5.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
CWE
  • CWE-494 - Download of Code Without Integrity Check
Assigner
References
Impacted products
Vendor Product Version
ActiveSoft MyBrowserPlus Affected: 6.2.2018.529 , ≤ 6.2.2018.529 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2020-7813 (GCVE-0-2020-7813)

Vulnerability from cvelistv5 – Published: 2020-05-22 13:05 – Updated: 2024-08-04 09:41
VLAI
Title
Kaoni ezHTTPTrans Active-X File Download and Execution Vulnerability
Summary
Ezhttptrans.ocx ActiveX Control in Kaoni ezHTTPTrans 1.0.0.70 and prior versions contain a vulnerability that could allow remote attacker to download and execute arbitrary file by setting the arguments to the activex method. This can be leveraged for code execution.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-494 - Download of Code Without Integrity Check
Assigner
References
Impacted products
Vendor Product Version
Kaoni ezHTTPTrans Affected: 1.0.0.70 , ≤ 1.0.0.90 (custom)
Create a notification for this product.
Credits
Thanks to Eunsol Lee for this vulnerability report.
Show details on NVD website
To clipboard 

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Mitigation MIT-42
Implementation

Perform proper forward and reverse DNS lookups to detect DNS spoofing.

Mitigation
Architecture and Design Operation
  • Encrypt the code with a reliable encryption scheme before transmitting.
  • This will only be a partial solution, since it will not detect DNS spoofing and it will not prevent your code from being modified on the hosting site.
Mitigation MIT-4
Architecture and Design

Strategy: Libraries or Frameworks

  • Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
  • Speficially, it may be helpful to use tools or frameworks to perform integrity checking on the transmitted code.
  • When providing the code that is to be downloaded, such as for automatic updates of the software, then use cryptographic signatures for the code and modify the download clients to verify the signatures. Ensure that the implementation does not contain CWE-295, CWE-320, CWE-347, and related weaknesses.
  • Use code signing technologies such as Authenticode. See references [REF-454] [REF-455] [REF-456].
Mitigation MIT-17
Architecture and Design Operation

Strategy: Environment Hardening

Run your code using the lowest privileges that are required to accomplish the necessary tasks [REF-76]. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment. For example, database applications rarely need to run as the database administrator, especially in day-to-day operations.

Mitigation MIT-22
Architecture and Design Operation

Strategy: Sandbox or Jail

  • Run the code in a "jail" or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which files can be accessed in a particular directory or which commands can be executed by the software.
  • OS-level examples include the Unix chroot jail, AppArmor, and SELinux. In general, managed code may provide some protection. For example, java.io.FilePermission in the Java SecurityManager allows the software to specify restrictions on file operations.
  • This may not be a feasible solution, and it only limits the impact to the operating system; the rest of the application may still be subject to compromise.
  • Be careful to avoid CWE-243 and other weaknesses related to jails.
CAPEC-184: Software Integrity Attack

An attacker initiates a series of events designed to cause a user, program, server, or device to perform actions which undermine the integrity of software code, device data structures, or device firmware, achieving the modification of the target's integrity to achieve an insecure state.

CAPEC-185: Malicious Software Download

An attacker uses deceptive methods to cause a user or an automated process to download and install dangerous code that originates from an attacker controlled source. There are several variations to this strategy of attack.

CAPEC-186: Malicious Software Update

An adversary uses deceptive methods to cause a user or an automated process to download and install dangerous code believed to be a valid update that originates from an adversary controlled source.

CAPEC-187: Malicious Automated Software Update via Redirection

An attacker exploits two layers of weaknesses in server or client software for automated update mechanisms to undermine the integrity of the target code-base. The first weakness involves a failure to properly authenticate a server as a source of update or patch content. This type of weakness typically results from authentication mechanisms which can be defeated, allowing a hostile server to satisfy the criteria that establish a trust relationship. The second weakness is a systemic failure to validate the identity and integrity of code downloaded from a remote location, hence the inability to distinguish malicious code from a legitimate update.

CAPEC-533: Malicious Manual Software Update

An attacker introduces malicious code to the victim's system by altering the payload of a software update, allowing for additional compromise or site disruption at the victim location. These manual, or user-assisted attacks, vary from requiring the user to download and run an executable, to as streamlined as tricking the user to click a URL. Attacks which aim at penetrating a specific network infrastructure often rely upon secondary attack methods to achieve the desired impact. Spamming, for example, is a common method employed as an secondary attack vector. Thus the attacker has in their arsenal a choice of initial attack vectors ranging from traditional SMTP/POP/IMAP spamming and its varieties, to web-application mechanisms which commonly implement both chat and rich HTML messaging within the user interface.

CAPEC-538: Open-Source Library Manipulation

Adversaries implant malicious code in open source software (OSS) libraries to have it widely distributed, as OSS is commonly downloaded by developers and other users to incorporate into software development projects. The adversary can have a particular system in mind to target, or the implantation can be the first stage of follow-on attacks on many systems.

CAPEC-657: Malicious Automated Software Update via Spoofing

An attackers uses identify or content spoofing to trick a client into performing an automated software update from a malicious source. A malicious automated software update that leverages spoofing can include content or identity spoofing as well as protocol spoofing. Content or identity spoofing attacks can trigger updates in software by embedding scripted mechanisms within a malicious web page, which masquerades as a legitimate update source. Scripting mechanisms communicate with software components and trigger updates from locations specified by the attackers' server. The result is the client believing there is a legitimate software update available but instead downloading a malicious update from the attacker.

CAPEC-662: Adversary in the Browser (AiTB)

An adversary exploits security vulnerabilities or inherent functionalities of a web browser, in order to manipulate traffic between two endpoints.

CAPEC-691: Spoof Open-Source Software Metadata

An adversary spoofs open-source software metadata in an attempt to masquerade malicious software as popular, maintained, and trusted.

CAPEC-692: Spoof Version Control System Commit Metadata

An adversary spoofs metadata pertaining to a Version Control System (VCS) (e.g., Git) repository's commits to deceive users into believing that the maliciously provided software is frequently maintained and originates from a trusted source.

CAPEC-693: StarJacking

An adversary spoofs software popularity metadata to deceive users into believing that a maliciously provided package is widely used and originates from a trusted source.

CAPEC-695: Repo Jacking

An adversary takes advantage of the redirect property of directly linked Version Control System (VCS) repositories to trick users into incorporating malicious code into their applications.

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